Because our health concept is still relatively backward, many preventable diseases are not detected and treated in time, bringing irreversible effects on the health of children and leaving behind the regret of most parents! One such case is still vivid in my mind, and it is not an isolated case, I always meet several of them every year during the holidays. Ming Ming is a very tall senior boy, these two years of rapid growth in height, academic performance is also very good, into the key high school, the whole family is very pleased. Still, in the past year, Ming Ming always said leg pain, chest pain and so on, parents also did not pay attention to. When the summer vacation came, the parents finally brought their child to the pediatric clinic of ZJU. The doctor found that Mingming’s chest was obviously deformed, flat, bilateral asymmetry, and funnel chest, thyroid ultrasound examination had thyroid nodules, and blood biochemical examination found serious vitamin D deficiency. It turned out that the child had very little outdoor activity due to the heavy school load in the past two years, which led to severe vitamin D deficiency and caused rapid growth of bone deformation, which would affect the child’s lifelong chest shape. In fact, this adolescent vitamin D deficiency is not uncommon in China, Hangzhou has reported: nearly half of adolescents have severe vitamin D deficiency. If regular checkups are done, timely supplementation can prevent bone deformities. Vitamin D deficiency not only affects bone growth, but also the body’s immune function. Children with vitamin D deficiency have a significantly higher chance of contracting infections, which places a burden on school, health and family finances. Health checkups, as a preventive measure, can identify problems earlier and deal with them in time to avoid serious adverse outcomes. In the past two years, health screening centers have detected a large number of sick and sub-healthy children, including vitamin D deficiency, obesity, hypertension, hyperuricemia, thyroid nodules, abnormal electrocardiograms and other health problems. Most of the children eventually recovered to normal levels due to early detection and timely treatment. As a professional children’s health care and clinical service provider, ZUCHC has developed different medical checkup packages for children of different age groups according to their developmental characteristics, covering the detection of common childhood diseases, thus facilitating early detection, early treatment and promoting children’s health.